CN103081914B - Oil recovery reinjection water bactericide and application thereof - Google Patents
Oil recovery reinjection water bactericide and application thereof Download PDFInfo
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- CN103081914B CN103081914B CN201110339263.1A CN201110339263A CN103081914B CN 103081914 B CN103081914 B CN 103081914B CN 201110339263 A CN201110339263 A CN 201110339263A CN 103081914 B CN103081914 B CN 103081914B
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Abstract
The invention discloses an oil recovery reinjection water bactericide and an application thereof. The bactericide comprises dibromo nitrilotriacetic propionamide and halogenated hydantoin with a weight ratio of 200:1-20:1. The bactericide can be used in polymer flooding reinjection water. According to the bactericide provided by the invention, with a synergetic effect between monomers, hydrolysis stability is improved, such that potency is increased and is maintained stable. Therefore, oil recovery pipeline and stratum corrosion, fouling and blocking caused by bacteria and algae can be greatly relieved. Because of the compatibility of bactericide components and oil recovery additives, polymer flooding reinjection water viscosity can be substantially improved, such that polymer dose during polymer flooding can be greatly reduced, and oil recovery production stability and efficiency improvement can be facilitated on a basis of water saving and emission reduction.
Description
Technical field
The present invention relates to a kind of bactericide and application thereof, relate more specifically to a kind of oil reinjection water bactericide and application thereof.
Background technology
The most of oil field of China has adopted the mode of waterflooding extraction at present, thereby the relation of water and Petroleum Production is very big.Two problems of having brought along with oil-field flooding: the one, the water resources problem of water filling, people are provided by the water source that can provide the water yield large and stable; The 2nd, water content in crude oil constantly rises, and the oil-polluted water water yield is increasing, and the discharge of sewage and processing are large problems.Therefore, oilfield produced water re-injection is a reasonable development and the right way that utilizes water resource.
But the water quality complexity of oilfield produced water, contains many harmful components.Therefore the water quality of oilfield injection water is had to certain requirement, otherwise bring a series of new problem can to whole oil extraction system.As owing to also having a large amount of organic or inorganic impurity in oil extraction-generated waste water, and the problem that the harmful bacteria causing grows has in a large number been brought very big harm to the normal operation of oil production equipment, and even heavy corrosion destroys hardware, dirty stifled system, causes systemic breakdown.What wherein harm was the most serious is sulfate reducing bacteria.Sulfate reducing bacteria can bring out cathodic depolarization effect in the neutral environment of anaerobic, thus accelerated corrosion process.Can cause that system spot corrosion district is full of black erosion, produce dark pitting corrosion, it is acid that the system water quality of making graduates into, in system, dissolvable sulfide content increases, and even makes injected water become Heisui River, and injected water is by acidifying, injected water volume declines, and the metal that makes to be exposed in system damages rapidly.If containing polymer, also will increase the viscosity of oil-polluted water in oil extraction-generated waste water, increase the emulsification degree of profit, elaioleucite diameter is diminished.This has just more increased organic matter in oil recovery water, and has further reduced the mobility of water in system, thereby is more conducive to growing of sulfate reducing bacteria.
Oil extraction-generated waste water must pass through a series of waste water treatment flow process for re-injection, just can be recycled into system after reaching re-injection water water quality index.The researching and developing status of comprehensively domestic and international treatment of waste water containing heavy oil, " old three covers " technique of main still employing " oil removal-coagulation-filtration " or " oil removal-air supporting-filtration " this two quasi-tradition of the known domestic and international processing for condensed oil sewage at present.This treatment process is the water flood treatment technique of thin oil substantially, cannot make condensed oil sewage qualified discharge by " old three cover " water flood treatment technique.In the time utilizing " old three covers " PROCESS FOR TREATMENT condensed oil sewage, domestic general employing increases processes structure unit volume, improves hydraulic detention time, and the way that extends process route increases oil-water separation; Abroad, in recent years at enhanced sewage treatment facility separation efficiency, there is greater advance exploitation better sewage disposal device and the group technology aspect of oil-water separation.On the basis of " old three covers " treatment process, increase " biological processing unit " and also become one of current developing direction.The key of oil-containing sewage treatment technique is the treatment effect of biological processing unit.For improving the usefulness of this unit, many biotechnologys have been used to the processing of oil-contaminated water of oil field, comprise activated sludge process, SBR method, biomembrance process, oxidation pond process, anaerobic organism technology etc.
And compared with water drive oil-polluted water, polymer-bearing waste-water intractability is larger.Bioanalysis has caused various countries' correlative study worker's extensive concern gradually as realizing oily waste water treatment major technique.By domestic and international research with facts have proved, it is in feasible, technique to be reliable technically that bioanalysis is realized oil-polluted water re-injection.Research in recent years shows, the key of oil field waste biologic treating technique is biological inoculum and biological treatment, must be on there is a profound understanding to oilfield sewage feature basis upper, develop efficient biological special efficacy bacterial classification and biological treatment.Due to stablizing of polymer-bearing waste-water character, bring great difficulty to water-oil separating, existing Many researchers turns to bioanalysis by sight line from physical treatment methods such as water-oil separatings.The key of oilfield sewage biologic treating technique is biological inoculum and biological treatment, and for the processing of polymer-bearing waste-water, should be based upon upper to its sewage feature there is a profound understanding basis, develops efficient biological special efficacy bacterial classification and biological treatment.
After above handling process, oil extraction-generated waste water water quality only can reach outer row's index reluctantly, and for for re-injection, above flow process is all often necessary.If but for re-injection, just must control the index of bacterium algae index, particularly sulfate reducing bacteria.Especially in some biological treatment, also can introduce High Efficient Sulfate-reducing Bacteria in order to stress to reduce some index in sewage.So must find a kind of rational approach to control the sulfate reducing bacteria in water body, make water quality reach re-injection requirement.
The chemical sterilization technology that adds bactericide is the method for disinfection of domestic and international oil field wide popularization and application, it not only has the feature of economy, easy to use, instant effect, its outstanding advantages is, when in water after treatment, contain certain surplus bactericide time, can effectively control bacterium breeds in stratum, prevent that opsonigenous substance and corrosion product from damaging to stratum, reduced H in Produced Liquid
2the corrosion that S causes production facilities and ground system equipment.Bactericide is of a great variety.Its sterilization mechanism is in the chemical agent with stable sterilization idiocratic, contains the material that can destroy cellular enzymes or matrix exchange system, utilizes interaction between chemical agent and bacterium to reach the object of kill bacteria.The bactericidal effect of bactericide is relevant with the factor such as kind, microorganism life condition of its structure, dispensing dosage, medication cycle, microorganism species.
Conventionally require that oil field reinjection water bactericide has efficiently, low toxicity, quick-acting, wide spectrum, good stability, compatibility is strong, source is abundant, low price, the advantage such as easy to use.At present; the research and development of external water treatment agent is very active in field of fine chemical; and in producing, fine chemical product occupies critical role; and constantly chemical constitution and the performance to water treatment agent improved, as improve bactericide molecular weight, introduce new group, and gradually to the cation reagent future development of efficient sterilizing.But in oilfield process, along with the development of oil recovery technique, domestic each oil recovery factory, successively carries out polymer displacement of reservoir oil and ternary composite oil-displacing, and the water quality situation in oil field is had a very large change.No matter be injected system or extraction system, all contain to some extent a certain amount of polymer, surfactant and a certain amount of alkaline matter.Generally, in injected system, polymer and surfactant concentration are higher, compared with low a lot of of injected system, but generally also exceed the concentration (50 ~ 120ppm) of bactericide in extraction system concentration.Bring a lot of drawbacks therefore to bactericide sterilization.Cationic germicide, can not adapt to current oil field water quality situation.Because it can form water-fast complex compound with anion surfactant, also there is precipitation and flocculation reaction with partial hydrolysis polypropylene phthalein amine (HPAM) simultaneously, make the polymer in solution from water, precipitate or flocculate, decreasing by surfactant the concentration of polymer, make again the valid density of bactericide reduce, lost its due bactericidal action.For selected bactericide can effectively reach sterilization object in the water of oil field, we need to select and the bactericide that more adapts to oil field water complicated ingredient.
In addition, external oxidative bactericide is mainly to using the future development safer, germicidal efficiency is higher, as stability in use chlorine dioxide, symclosene, smell series bactericidal agent etc.More domestic scientific research institutions also take up the research work of this respect at present, have all obtained compared with much progress in the preparation of stabilized chlorine solutions of chlorine and the manufacture view of chlorine dioxide generator.But domestic most onshore oil field, oil-extracting and water-injecting system is mainly carried out in confined conditions, in water filling, organic matter content is high, conventionally need a large amount of oxidants just can reach the object of sterilization, and through long-term field experiment research, or maybe can increase corrosion because bactericidal effect is not good, can not promote the use of at the scene.
The monomer medicament that is usually used in bactericide also comprises: heterocyclic compound (derivative of imidazole derivative, thiazole, imidazoline and triazine, isothiazolinone, poly-season thiazine, polypyridine, poly quinoline, chlohexidine, alkyl guazatine etc.), aldehyde compound (formaldehyde, isobutylaldehyde, acrolein, cinnamic acid, benzaldehyde, glyoxal, glutaraldehyde etc.) and containing cyanides etc., but these materials often exist absorption loss strong, add the defects such as concentration is high or poorly soluble.Also have a lot of medicaments to carry out various composite obtaining by single dose.This is because the composite germicidal efficiency that can not only improve between medicament can also reduce disposal cost, so recent year is all selected the composite method development of new products energetically about scientific research institution and producer.
Summary of the invention
The present invention is directed to the problem that in prior art, oil reinjection water bactericide exists, a kind of novel oil production reinjection water sterilizing agent and application are provided, this bactericide obtains by the composite of single dose, can be used for three the polymer flooding oil-extraction water treatments in oil field, product water after treatment reaches re-injection water water quality requirement, eliminate harmful microbial corrosion and dirty stifled harm to oil well, pipeline and oil production equipment, thereby greatly improved oil field water-use efficiency, reached the object of water-saving and emission-reducing.Its bactericide is environmentally friendly, easy to use.
Technical scheme of the present invention is: a kind of oil reinjection water bactericide, comprises dibromo nitrilo propionamide and hydantoin halides.
Described bactericide comprises that mass percent is dibromo nitrilo propionamide and the hydantoin halides of 200:1-20:1.
Described dibromo nitrilo propionamide is the bromo-3-nitrilo of 2,2-bis-propionamide.
Described hydantoin halides is the two halogen root dimethyl hydantion that contain chlorine or bromine.
Described hydantoin halides is two chlordantoins, BCDMH or C5H6Br2N2O2.
In described bactericide, also comprise solvent and stabilizing agent.
Described solvent is water or alcohol organic solvent.
Described alcohol organic solvent is polyethylene glycol or diethylene glycol.
Described stabilizing agent is one or more in polyformaldehyde, acetonitrile, halogenated acetic acids ester and sodium carbonate.
A preparation method for bactericide, comprises the steps:
1) ethyl cyanoacetate is reacted at low temperatures with concentrated ammonia liquor, produce cyanoacetamide; Cyanoacetamide is soluble in water, then drip bromine and sodium bromate reacts; After reaction, solution is cooling, and suction filtration obtains dibromo nitrilo propionamide after being dried;
2) dibromo nitrilo propionamide is dissolved in solvent, is configured to active ingredient and is not less than 20% solution;
3) in dibromo nitrilo propionamide solution, add stabilizing agent;
4) ratio of 200:1 ~ 20:1 adds hydantoin halides to mix in dibromo nitrilo propionamide solution by mass percentage.
The present invention also provides a kind of preparation method of bactericide, comprises the steps:
1) ethyl cyanoacetate is reacted at low temperatures with concentrated ammonia liquor, produce cyanoacetamide; Cyanoacetamide is soluble in water, then drip bromine and sodium bromate reacts; After reaction, solution is cooling, and suction filtration obtains dibromo nitrilo propionamide after being dried;
2) ratio of 200:1 ~ 20:1 mixes dibromo nitrilo propionamide and hydantoin halides by weight percentage;
3) in mixture, add solvent to be prepared as mixture solution;
4) in mixture solution, add stabilizing agent.
The present invention also provides the application as bactericide in the re-injection water that adopts polymer displacement of reservoir oil of above-mentioned oil reinjection water bactericide.
The re-injection water of described employing polymer displacement of reservoir oil is tertiary oil production in oil field sewage.
Described re-injection water pollutant load before applying bactericidal agent meets oil extraction in oil field re-injection water quality standard, and bacterium colony index does not reach oil extraction in oil field re-injection water quality standard.This oil extraction in oil field re-injection water quality standard can be national standard, can be also that standard is made in oil field by oneself, and general oil field is made standard by oneself and should be equal to or higher than national standard.Can be referring to table 1 and table 2.
The method that described bactericide is applied in re-injection water is on-line continuous addition method or impact addition method.
The concentration that described on-line continuous is added in re-injection water is 15 ~ 80mg/L; The concentration that described impact is added in re-injection water is 50 ~ 200mg/L.
The bacterium that described bactericide is killed comprises sulfate reducing bacteria.Bactericide of the present invention is better to sulfate reducing bacteria effect, but described bactericide is wide-spectrum bactericide, and other bacterium is all had to killing action.
The present invention for re-injection water be tertiary oil production in oil field (mainly for the adopting polymer displacement of reservoir oil mode) sewage after " old three cover " and biochemical sewage handling process, or after processing early stage, outside degerming algae index, all the other have all reached the re-injection water of oil recovery injected water index.
The re-injection water of addressing is through the preliminary treatment of " old three covers " technique of " oil removal-coagulation-filtration " or " oil removal-air supporting-filtration " this two quasi-tradition, and may be through biochemical or other treatment process to a certain degree, make the pollutant loads such as the oil, organic matter, machine of sewage is assorted drop to the water standard that can be used for oil extraction in oil field re-injection water, reach standard shown in following table 1 (not representing GB), but bacterium colony index particularly sulfate reducing bacteria index do not reach the standard shown in table 2:
Table 1 China part oil-field flooding water quality requirement
| Water quality project | Ancestral petroleum Ministry of Industry standard | A oil field standard | B oil field standard | C oil field standard |
| Mechanical admixture | <2mg/L | <1 mg/L | <2 mg/L | <2 mg/L |
| Iron | <0.5 mg/L | Fe 3+<0.1 mg/L | Fe 3+<0.5 mg/L | Fe 3+<0.5 mg/L |
| Oxygen | <0.1 mg/L | <0.1 mg/L | <1.0 mg/L | <0.5 mg/L |
| H 2S | 0.1~0.2 mg/L | <0.1 mg/L | 0 | 0 |
| CO 2 | 0.5 mg/L | <10 mg/L | 0 | 0 |
| Oil | 30 mg/L | ? | ? | ? |
| PH and oil reservoir and oil-reservoir water compatibility | 6.5~8.5 | Do not produce precipitation with stratum water, core damage rate permeability decrease < 5% | 7 ~ 8 do not produce precipitation with stratum water, do not make stratum medium clay soil expand and reduce permeability | 7 ~ 8 do not produce precipitation with stratum water, do not make stratum medium clay soil expand and reduce permeability |
Table 2 China part oil-field flooding bacterium colony index request
The addition method of bactericide of the present invention can adopt online continuous addition method, and bactericide boosts to mix with a certain proportion of sewage through dosing pump by concentration requirement and carries out whole day injection continuously in 24 hours; Also can adopt the impact addition method of fixed volume water storage facility, the frequency that impact adds is determined according to the concentration of bacterium algae in water, and generally sulfate reduction bacteria concentration reaches 10
2individual/to carry out when ml left and right.The concentration that adds of medicament is: on-line continuous adds concentration 15 ~ 80mg/L in water; It is 50 ~ 200mg/L that impact adds concentration in water.
The essential distinction of the present invention and prior art is:
This invention is composite by dibromo nitrilo propionamide and synergy medicament, obtain a kind of special medicament for the processing containing polymer sewage from oil extraction, with in water, three adopt impurity and other oil recovery auxiliary agents in polymer, oil recovery organic matter, water and there is good compatibility, can kill rapidly, efficiently sulfate reducing bacteria and other mushrooms in water and effectively suppress mushroom and grow.Add in raising the effect that dosage can reach foundry loam and peels off and clear up pipeline.By compounded formula, overcome that the drug effect that single dose and other composite bactericides exist is poor, poor stability, toxicity is large, medicament adsorptivity is strong, medicine consumption is high and operate uneasy congruent drawback, overdose of medicine agent can not cause corrosion to oil production equipment and pipeline etc.Add dosage low.By the mutual synergistic effect of several single doses, slow down medicament hydrolysis, increase stability and the drug effect continuation of medicament, can make harmful bacteria concentration in water maintain for a long time in index control range.Medicament of the present invention is environmentally friendly medicament in addition, and its hydrolysate does not cause artificial pollution to natural environments such as stratum.
The invention has the beneficial effects as follows:
In tertiary oil recovery sewage, the content of sulfate reducing bacteria is generally 10
2individual/below ml, because there is no sterilization algae removal link midway, sewage tends to occur bacterium algae and grows in a large number after the handling processes such as " old three covers " and other biochemistry in sewage storage tank, and wherein the content of sulfate reducing bacteria tends to reach 10
3individual/ml is even higher.Medicament of the present invention can effectively be controlled three colony counts of adopting sulfate reducing bacteria in sewage that produce in tertiary oil production in oil field process, makes it reach back waterflooding requirement.
Medicament itself, by the synergistic function between monomer, has increased hydrolytic stability, and drug effect is not only increased, and continual and steady, has greatly alleviated the corrosion and the dirty stifled situation that in oil recovery pipeline and rock stratum, cause because of bacterium algae.
With strong points to sulfate reducing bacteria, effectively controlled this pair of oil field equipment and taken over road and endanger maximum bacterium algae pollution, reduced the generation of the toxic gases such as the dirty stifled and hydrogen sulphide of metal equipment corrosion, pipeline, the safety that has improved oil extraction operation.
The compatibility of adopting auxiliary agent due to medicament itself and three, after processing, significantly improve the viscosity of the re-injection water of addition polymerization compound, water filling can directly reach re-injection requirement, under the prerequisite that meets oilfield sewage prepared polymer solution requirements, can significantly reduce the polymer volume in polymer flooding process, in water-saving and emission-reducing, also be conducive to the stable yields synergy of tertiary oil recovery.
Brief description of the drawings
Fig. 1 uses the viscosity comparison diagram that has added the re-injection water of polymer after the bactericide of embodiment 3;
Fig. 2 uses the viscosity comparison diagram that has added the re-injection water of polymer after the bactericide of embodiment 4.
Embodiment
Embodiment 1
The dibromo nitrilo propionamide of 200 parts prepared by conventional method adds solvent polyethylene glycol after mixing with 1 part of two chlordantoin (claiming again dichloro-dimethyl glycolylurea), then adds stabilizing agent 10% aqueous sodium carbonate to mix acquisition bactericide.
Embodiment 2
The dibromo nitrilo propionamide of 20 parts prepared through conventional method is water-soluble to be prepared as after active ingredient is not less than 20% solution and to add after stabilizing agent 10% aqueous sodium carbonate, add again 1 part of C5H6Br2N2O2 (claiming again dibromo dimethyl hydantoin) to mix, then obtain bactericide after adding stabilizing agent as the poly-methyl alcohol of 0.1 part or acetonitrile or halogenated acetic acids ester.
Embodiment 3
After mixing with BCDMH (claiming again bromochlorodimethyl hydanton) after preparing dibromo nitrilo propionamide and add 10% aqueous sodium carbonate by conventional method, add solvent polyethylene glycol, add again stabilizing agent polyformaldehyde to mix, obtain bactericide, carry out bactericidal property evaluation test, the proportioning ratio (percentage by weight) of dibromo nitrilo propionamide, BCDMH and stabilizing agent is as shown in table 3, the proportioning of solvent polyethylene glycol can obtain according to table 3, in table, does not show.Bactericidal effect is in table 4.In table 4 taking sulfate reducing bacteria as example illustrates bactericidal effect of the present invention, but bactericide of the present invention is broad spectrum antimicrobicide, the known described bactericide of those skilled in the art also can be applicable to other harmful bacteria.Its bactericidal property evaluation method adopts MPN method (being equally applicable to later embodiment), and implementation method is as follows:
Directly get the water outlet after " old three covers " and biochemical treatment containing polymer sewage from oil extraction, the pollutant load of this water outlet reaches re-injection water quality standard, and bacterium colony index does not reach standard, visible table 4.Add certain density bactericide, be placed in 30 DEG C of incubators, in certain hour monitoring bacterial population, make blank sample simultaneously, calculate sterilizing rate (bacteriostasis rate).
Table 3 1# composite reagent ratio
| Nomenclature of drug | Dibromo nitrilo propionamide | Bromochlorodimethyl hydanton | Polyformaldehyde | Solvent |
| Compound proportion | 22% | 2% | 0.2% | Polyethylene glycol |
Table 4 1# medicament disinfecting effect (sulfate reducing bacteria)
| Adding consistency | Starter bacteria | Bacterium number after 1h | 1h sterilizing rate % | Bacterium number after 24h | 24h bacteriostasis rate % |
| 15mg/L | 2.5×10 3 | 1.7×10 2 | 93.2 | 17 | 99.3 |
| 30 mg/L | ? | 2 | 99.9 | 3 | 99.9 |
| 45 mg/L | ? | 1 | 99.9 | 1 | 99.9 |
In experiment water sample, polymer poly acrylamide content is 500mg/L left and right, does not find muddiness or deposited phenomenon in experimentation.Use the water after sterilization processing to carry out polymer formulation, it is 1000mg/L that polymer adds concentration, and its viscosity and Stability index are all better than or are not less than not adding bactericide water sample.Viscosity correlation curve is shown in Fig. 1.
Embodiment 4
After mixing with two chlordantoins, dibromo nitrilo propionamide prepared by conventional method adds solvent diethylene glycol, add again stabilizing agent polyformaldehyde to mix, obtain bactericide, carry out bactericidal property evaluation test, compound proportion, concentration of sterilant and bactericidal effect are in table 5, table 6.
Table 5 2# composite reagent ratio
| Nomenclature of drug | Dibromo nitrilo propionamide | Dichloro-dimethyl glycolylurea | Polyformaldehyde | Solvent |
| Compound proportion | 23% | 1.5% | 0.2% | Diethylene glycol |
Table 6 2# medicament disinfecting effect (sulfate reducing bacteria)
| Adding consistency | Starter bacteria | Bacterium number after 1h | 1h sterilizing rate % | Bacterium number after 24h | 24h bacteriostasis rate % |
| 15mg/L | 4.5×10 3 | 9.5×10 2 | 78.4 | 2.5×10 2 | 94.2 |
| 30 mg/L | ? | 8 | 99.8 | 22 | 99.5 |
| 45 mg/L | ? | 4 | 99.9 | 6 | 99.9 |
In experiment water sample, polymer poly acrylamide content is 300mg/L left and right, does not find muddiness or deposited phenomenon in experimentation.Use the water after sterilization processing to carry out polymer formulation, it is 1000mg/L that polymer adds concentration, and its viscosity and Stability index are all better than or are not less than not adding bactericide water sample.Viscosity correlation curve is shown in Fig. 2.
Embodiment 5 is not for adding the dibromo nitrilo propionamide experiment effect of other sterilization monomer.
Table 7 3# composite reagent ratio
| Nomenclature of drug | Dibromo nitrilo propionamide | Dichloro-dimethyl glycolylurea | Polyformaldehyde | Solvent |
| Compound proportion | 23% | 0 | 0 | Diethylene glycol |
Table 8 3# medicament disinfecting effect (sulfate reducing bacteria)
| Adding consistency | Starter bacteria | Bacterium number after 1h | 1h sterilizing rate % | Bacterium number after 24h | 24h bacteriostasis rate % |
| 15mg/L | 2.5×10 3 | 6.5×10 2 | 74.0 | 1.5×10 3 | 40.0 |
| 30 mg/L | ? | 0.8×10 2 | 96.8 | 4.5×10 2 | 82.0 |
| 45 mg/L | ? | 10 | 99.6 | 2.5×10 2 | 90.0 |
| 60 mg/L | ? | 8 | 99.7 | 1.5×10 2 | 94.0 |
In experiment water sample, polymer poly acrylamide content is 500mg/L left and right, does not find muddiness or deposited phenomenon in experimentation.But because bactericide does not form syneryistic effect, and do not screen by formula the stability that increases active ingredient, so the bactericidal effect of medicament and fungistatic effect all do not reach the effect of formula of the present invention.
Claims (10)
1. an oil reinjection water bactericide, is characterized in that, comprises dibromo nitrilo propionamide and hydantoin halides, and the mass percent of dibromo nitrilo propionamide and hydantoin halides is 200:1-20:1.
2. oil reinjection water bactericide according to claim 1, is characterized in that, also comprises solvent and stabilizing agent in described bactericide.
3. oil reinjection water bactericide according to claim 1 and 2, is characterized in that, described hydantoin halides is the two halogen root dimethyl hydantion that contain chlorine or bromine.
4. oil reinjection water bactericide according to claim 3, is characterized in that, described hydantoin halides is two chlordantoins, BCDMH or C5H6Br2N2O2.
5. oil reinjection water bactericide according to claim 2, is characterized in that, described solvent is water or alcohol organic solvent.
6. oil reinjection water bactericide according to claim 2, is characterized in that, described stabilizing agent is one or more in polyformaldehyde, acetonitrile, halogenated acetic acids ester and sodium carbonate.
An oil reinjection water bactericide as described in arbitrary claim in claim 1-6 in the re-injection water that adopts polymer displacement of reservoir oil as the application of bactericide.
8. application according to claim 7, is characterized in that, described re-injection water pollutant load before applying bactericidal agent meets oil extraction in oil field re-injection water quality standard, and bacterium colony index does not reach oil extraction in oil field re-injection water quality standard.
9. application according to claim 7, is characterized in that, adopts on-line continuous addition method or impact addition method in oil reinjection water, to apply described bactericide.
10. application according to claim 9, is characterized in that, the concentration that described bactericide on-line continuous is added in re-injection water is 15-80mg/L; The concentration that described bactericide impact is added in re-injection water is 50-200mg/L.
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Non-Patent Citations (6)
| Title |
|---|
| HB-3工业杀菌剂的研制应用和抑霉试验;曹健等;《河南化工》;20041231(第7期);24-25 * |
| 含溴工业杀菌剂概述;顾学斌;《广东化工》;20110525;第38卷(第217期);1-4 * |
| 庞名立.浅谈钻井泥浆中的杀菌剂.《石油与天然气化工》.1986,第15卷(第1期),59-61. * |
| 曹健等.HB-3工业杀菌剂的研制应用和抑霉试验.《河南化工》.2004,(第7期),24-25. * |
| 浅谈钻井泥浆中的杀菌剂;庞名立;《石油与天然气化工》;19861231;第15卷(第1期);59-61 * |
| 顾学斌.含溴工业杀菌剂概述.《广东化工》.2011,第38卷(第217期),1-4. * |
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